The Square D MA-1000-S Circuit Breaker Enclosure Type 1 is a high-quality molded case circuit breaker designed for industrial electrical systems. With a maximum amperage of 600 and a current rating of 1000 A, this Main Breaker is capable of handling large amounts of electrical current. The tripping characteristics of Type S ensure reliable protection against overloads and short circuits, while the voltage rating of 600 VAC makes it suitable for a variety of applications. With its durable construction and brand reputation of Square D, this circuit breaker is a reliable choice for maintaining electrical safety in commercial and industrial settings.